SDA9489X Datasheet, PDF (31/102 Pages) List of Unclassifed Manufacturers – PIP IV Advanced SOPHISTICUS High-End Picture-In-Picture ICs

SDA 9489X
SDA 9589X
Preliminary Data Sheet
System Description
10
9
8
7
6
5
4
3
2
1
0
0
0.1
0.2
0.3
0.4
normed frequency
Figure 4-12 Characteristics of selectable peaking factors
(0.5 = band limit)
YPEAK = ’111’
YPEAK = ’110’
YPEAK = ’101’
YPEAK = ’100’
YPEAK = ’011’
YPEAK = ’010’
YPEAK = ’001’
YPEAK = ’000’
0.5
Coring should be switched on by YCOR to reduce noise, which is also amplified when
peaking is enabled. As the coring stage is in front of the peaking filter, 1 LSB noise will
not be peaked.
4.8.2
RGB Matrix
The chip contains three different matrices, one suited for EBU standards, one suited for
NTSC-Japan and one suited for NTSC-USA, which are selected via MAT. The signal
OUTFOR switches between YUV output or RGB output. The signal UVPOLAR inverts
the U and V channels and results in Y-U-V output. The standard magnitudes and angles
of the color-difference signals in the UV-plane are defined as follows:
MAT
D1 D0
0
0
0
1
1
0
1
1
Magnitudes
(B-Y) (R-Y) (G-Y)
2.028
2.028
2.028
1.14
1.582
2.028
0.7
0.608
0.608
Angles
(B-Y) (R-Y) (G-Y)
0
90
236
0
95
240
0
105 250
Standard
EBU
NTSC (Japan)
NTSC (USA)
(reserved)
Table 4-18 RGB matrices characteristics
The color saturation can be adjusted with SATADJ register in 16 steps between 0 and
1.875. Values above 1.0 may clip the chrominance signals.
Micronas
4-31